fanuc macro system variables

You must find their predetermined names in the FANUC operator’s manual. If accessing data in offset number five (wear or geometry, length or radius), the data number will be five. To make matters worse, the series or system variable numbers vary among FANUC CNCs and offset table configurations.With system variable naming for numbered data, the data number corresponds to the register number. Once this command is executed once, four permanent common variables from #510 through #513 will be named as [#DIA1], [#LENGTH], [#DIA2], and [#LENGTH2] respectively. expression at the right of operator can include constant and variable composed with function or operator. This command [#_ALM]=100(TOOL TOO WIDE) will also generate the alarm just shown.The first advantage of using system variable names instead of numbers is obvious: ease of recognition. And again, the system variable numbers will not be recognizable to people unfamiliar with custom macro. Here are some of the System variables available: • Tool Offsets • Work Offsets • Axis Positions • Modal Information • PMC Signals • Alarms • Automatic Operation Control • Timers and Counters . I understand that you call G65 Pxxxx Ayyyy Byyyy etc then pick up the arguments in variables #1-#33. Here, expression must be closed in bracket.Variable can be divided into four types according to variable number .The variable is always empty, no value is assigned to the variable.Local variable is only used to store data in macroprogram, such as operation outcome When power is cut, local variable is initialized to empty. Someone unfamiliar with system variable numbering will more easily understand what is happening in commands that incorporate system variable names.A second advantage has to do with system variables that provide access to numbered data, like offsets. 1 . Just about all current register settings within the CNC control are accessible, including all tool offset registers, fixture offset registers, current position (relative to the program zero point and relative to the zero return position), and current modal states. I'd like to be able to use that System Parameter as a Macro variable, but I haven't seen anything where we're able to read a system parameter into a variable … these are called System Variables. Each data type has a rather arbitrary series of associated system variable numbers. when using expression to specify variable, put expression in bracket.Cited variable value is rounded automatically according to minimum setting unit.When G00X# is executed as 1/ 1000mm , CNC assign 123456 to #1, and actual instruction value is G00X12346.To change the sign of cited variable, put negative sign before #.When you cite undefined variable, variable and address are all ignored.For example ： When value of variable #1 is 0 and value of #2 is empty, the executing outcome of G00X#1 Y# 2 is G00X0.For double locus control, system provides every locus individual macro variable. Consider this SETVN command: SETVN 521[LOW_RNG, HIGH_RNG].In each machine, set permanent common variable #521 to the low-range M-code value (23 or 41) and #522 to the high-range value (25 or 42).

All system variable names are enclosed in brackets and begin with a pound-sign and underscore (#_). Variable names will be retained until they are changed, even after cycling the power.Naming permanent common variables works well with system constants — values that are used among multiple programs and possibly among multiple similar machines. Variable is appointed by variable number （ # ） and latter variable number.Expression can be used to appoint variable number. Once named, as with system variables, you can reference the variable by its number or name.Consider this SETVN command: SETVN 510[DIA1, LENGTH1, DIA2, LENGTH2].The value 510 specifies the first permanent common variable to be named (#510).

You can, however, use the SETVN command to name 50 of the #500-series permanent common variables (#500-#549) with up to eight characters and numbers (the name must begin with a character).

… One uses M41 and M42 for low and high spindle range. Greetings I'm working on trying to setup a customized tool lifetime macro on one of our fanuc machines. Additionally, the system variable name will make more sense than the system variable number.Here are the system variable names for the machining center offset table discussed earlier (the letter n represents the data number):Either of the following commands store the current value of tool length compensation geometry offset register number five in common variable #101.You have no control over system variable naming. The unit has a very handy System Parameter, #6754, which tracks the cutting time (time operating only on G01,02,03, etc).

FANUC now enables CNC users to reference custom macro system variables by names in addition to hard-to-remember numbers. FANUC CNCs now allow you to additionally reference system variables by names. G01 X#1 F300. When user macro is used, numerical value can be appointed directly or by variable. Note that the variable named must be enclosed in brackets and begin with a pound sign. the left variable can be assigned by expression.Angle unit of function SIN ,COS,ASIN,ACOS,TAN and ATAN is degree, for example 90° 30' denote 90.5 degree.When parameter （ NO.6004#0 ） NAT bit place is set to 0, 270° ～ 90°,When parameter （ NO.6004#0 ） NAT bit place is set to 1, － 90° ～ 90°.（2） When #j overstep the range of － 1 to 1, P/S warning NO.111 is issued.（3） Variable #j can be replaced by constant.Angle is appointed with degree. Each successive name will be applied in sequence to subsequent permanent common variables. When variable is used, variable value can be changed by program or operation in MDI panel.

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